Etar – OpenSource Calendar is a simple and reliable calendar app made for Android users who want a clean experience without ads or unnecessary features. This app is mainly designed for people who like to manage their daily schedule in an organised way while keeping their data private. Unlike many modern calendar apps, Etar focuses on basic planning, offline access, and smooth performance instead of extra smart tools.
Students, working professionals, and regular Android users who only need a functional calendar will find this app very useful. It helps users track meetings, reminders, and personal events without distractions. The open-source nature of Etar Calendar also makes it a good option for users who care about transparency and privacy.
App Overview
Etar – OpenSource Calendar is a tools category app that uses the Android system calendar for syncing events. It supports multiple views and works well even without an internet connection. The app follows Material Design, making it easy to use for both new and experienced Android users. Below is a quick overview of the app details.
App Details
| Feature | Details |
|---|---|
| App Name | Etar – OpenSource Calendar |
| Category | Tools |
| Platform | Android |
| Size | 5.41 MB |
| Latest Version | 1.0.47 |
| Developer | Suhail Al-Kuwaiti |
| Price | Free |
| Official Source | Google Play Store |
Purpose of the App
The main purpose of Etar – OpenSource Calendar is to give Android users a simple, ad-free calendar for managing daily life. Many calendar apps today focus on extra features, cloud dependency, and tracking, which is not suitable for everyone. Etar solves this problem by offering a clean interface with essential tools only.
It helps users create events, check schedules, and manage reminders without requiring constant internet access. Because it uses Android calendar sync, users can still connect it with Google Calendar or Exchange if needed. The app is especially relevant for users who want full control over their data and prefer offline access for planning their day.
Key Features
Etar – OpenSource Calendar comes with all important features needed for daily scheduling. The app supports month view, which gives a full overview of upcoming events at a glance. This is useful for users who plan their work or personal tasks in advance.
It also includes week, day, and agenda views, allowing users to switch between detailed and simple layouts based on their needs. This flexibility helps both busy professionals and casual users manage time easily.
The app uses Android calendar sync, which means it works smoothly with Google Calendar, Exchange, and other supported services without extra configuration. One strong feature is offline calendar support, allowing users to view and manage events even without internet access.
Etar follows Material Design, so navigation feels natural and familiar. Users can choose between dark and light themes, which improves readability and comfort. The app also supports ICS file sharing and import/export, making it easy to back up or transfer calendar data. Most importantly, it is completely free, open source, and ad-free, ensuring a distraction-free experience.
How to Use the App
Using Etar – OpenSource Calendar is very easy, even for beginners. After installing the app, open it and allow calendar permissions so it can access your existing events. The app will automatically sync with your Android calendar accounts.
You can switch between month, week, day, and agenda views using the top menu. To add a new event, tap on the plus icon and enter details like title, date, time, and reminder.
For theme settings, go to the app settings and select dark or light mode based on your preference. If you want to import or export calendars, use the ICS option from settings. Since the app supports offline usage, you can continue managing events even without internet connectivity.
Benefits of Using the App
Etar – OpenSource Calendar offers several practical benefits for daily users. The biggest advantage is its ad-free experience, which keeps the app clean and focused. Users can plan meetings, classes, or personal tasks without interruptions.
Offline support is very helpful for users who travel frequently or have limited internet access. The simple design ensures easy navigation, even for older users. Privacy-focused users also benefit from the open-source nature, which brings transparency.
Overall, the app makes daily planning stress-free and reliable for regular Android users.
App Performance & User Experience
Etar – OpenSource Calendar performs smoothly on Android devices running Android 6.0 and above. The app is lightweight and does not consume much RAM or battery, making it suitable for budget smartphones.
Scrolling between views feels smooth, and event loading is quick. Since there are no ads or background tracking services, the app remains responsive even with many saved events.
The overall user experience is calm and distraction-free. The design is simple, which some users may find basic, but it helps maintain speed and clarity.
Is the App Safe to Use?
Yes, Etar – OpenSource Calendar is safe to use. The app only asks for necessary calendar permissions to function properly. It does not request unnecessary access to personal data.
Because it is open source, the source code is publicly available, which adds transparency and trust. The app does not show ads or include tracking tools.
Users should still follow basic safety practices like keeping their device updated and downloading the app only from the official Play Store. Overall, Etar Calendar is a secure option for daily planning.
Who Should Use This App?
Etar – OpenSource Calendar is ideal for users who want a simple and private calendar app. Students can use it to track exams and classes. Office workers can manage meetings and deadlines.
It is also suitable for privacy-focused users who avoid ad-heavy apps. People using budget Android phones will appreciate its lightweight performance.
If you prefer basic functionality over advanced smart features, this app fits your needs well.
Pros and Cons
| Pros | Cons |
|---|---|
| Free and open source | Limited advanced features |
| No ads or tracking | Basic design |
| Offline calendar support | Fewer customisation options |
Common Issues & Simple Solutions
Some users may face minor issues while using Etar – OpenSource Calendar. Sync problems can happen if Android calendar permissions are disabled. This can be fixed by checking app permissions in device settings.
If events are not showing correctly, refreshing calendar sync usually solves the issue. Users who feel the design is too simple can adjust themes for better comfort.
Occasional bugs can be reported directly on the official GitHub page, where developers actively review feedback. Most issues are minor and easy to fix.
FAQs
Is Etar – OpenSource Calendar completely free?
Yes, the app is fully free to use with no hidden charges or ads.
Does the app work without internet?
Yes, Etar Calendar supports offline usage for viewing and managing events.
Can I sync it with Google Calendar?
Yes, it uses Android calendar sync and works with Google Calendar and Exchange.
Is the app suitable for old Android phones?
Yes, it is lightweight and works well on budget and older Android devices.
Conclusion
Etar – OpenSource Calendar is a simple, reliable, and privacy-friendly calendar app for Android users. It focuses on essential features like multiple views, offline access, and smooth performance without ads.
While it may not offer advanced smart tools, its clean design and open-source nature make it a trustworthy option. If you are looking for a straightforward calendar app that respects privacy and works smoothly on any Android phone, Etar Calendar is a practical choice.
